Revision 83a06bf50bdf2074b9404951ff60e142d159d93b authored by Marcelo Roberto Jimenez on 02 February 2011, 18:04:02 UTC, committed by John Stultz on 03 February 2011, 20:59:50 UTC
This patch prevents a user space program from calling the RTC_IRQP_SET
ioctl with a negative value of frequency. Also, if this call is make
with a zero value of frequency, there would be a division by zero in the
kernel code.

[jstultz: Also initialize irq_freq to 1 to catch other divbyzero issues]

CC: Alessandro Zummo <a.zummo@towertech.it>
CC: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Marcelo Roberto Jimenez <mroberto@cpti.cetuc.puc-rio.br>
Signed-off-by: John Stultz <john.stultz@linaro.org>
1 parent 9118626
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